What serial port wiring does Mellanox use in their IB switches?

Discussion in 'Networking' started by dba, Feb 21, 2013.

  1. dba

    dba Moderator

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    I'm trying to commission my Voltaire/Mellanox 4136 Infiniband switch. Step one involves connecting to the switch via serial port - and a cable that I do not have. I tried my standard DB-9 cables but they do not work.

    Has anyone had success connecting to their Mellanox switch? What wiring did you use?
     
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  2. renderfarmer

    renderfarmer Member

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    Try a Cisco console cable.
     
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  3. dba

    dba Moderator

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    Just curious, is that a "try it, it might work" suggestion or a "try it - it works for me" suggestion?

     
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  4. renderfarmer

    renderfarmer Member

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    That was more like try it; it's the only other DB-9 style cable I know...

    I just rememberd that I had a Voltair switch a year ago and a standard RSR-232 (DB-9 to DB-9) worked for that.

    Then I switched to a Cisco Topspin90 and needed a Cisco DB9 cable. So I retract my previous suggestion. Sorry.
     
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    Last edited: Feb 23, 2013
  5. Patrick

    Patrick Administrator
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    Very OT but just looked at your portfolio. Very cool and local (although says NJ on the forums.)
     
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  6. renderfarmer

    renderfarmer Member

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    Thanks, I appreciate that. I lived/worked in San Francisco from 2007-2011. I kept the 415 phone number when I moved to Jersey to live with my wife last year.

    Thanks for creating this site btw. I had to figure out all of this Infiniband networking and server stuff by myself a year ago and it was pretty overwhelming. It's really nice to be able to discuss it with knowledgable like minded people.
     
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  7. Patrick

    Patrick Administrator
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    Ha! Originally from Jersey now in the Silicon Valley. Thanks for the kind words on the site. That was the whole idea of creating STH.
     
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  8. zane

    zane Member

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    So did the RSR-232 (DB-9 to DB-9) work on the Mellanox IB switch? I have a 4036 that that I can not get to work. I'm using a RSR-232 (DB-9 to DB-9) I get back nothing during boot ect... tried reset button for 50 sec nothing.. Would the usb port be of any use to me?

     
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  9. mobilenvidia

    mobilenvidia Moderator

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    You may need to get a xover cable.
    ie pins 2/3 get reversed don't use a straight through cable.

    Or make your own with plug in pins, as I did with my Expanders serial port
    Not exactly what you need but theory works the same I used to this to change the rcv/xmt pins, worked a treat.
    I use a USB-COM cable, then the below plug then a RJ12 cable to the expander serial port (RJ12), but DE-9 to DE-9 would work the same
    [​IMG]
     
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    Last edited: Oct 1, 2013
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